Red Spinel

Mineral Group: Spinel Group

Key Properties

Property Value
Mohs Hardness 8.0 (8)
Typical Size 0.5-20 carats (commercial: 1-8 carats; fine stones over 10 carats are rare)
Typical Price Range $300-10,000+ per carat (commercial: $800-3,000; finest "Jedi" red $5,000-10,000+)
Rarity Level Unique Geological
Availability Level Collectors Market
Availability Driver Limited Investment
Investment Appropriateness Emerging Investment Gems

Pricing

Typical Price
$300.00
per carat
Listing Price
$1146.70
per carat
Sold Price
$484.89
per carat
Discount Level
1.6
vs typical

Price Calculator

Estimate Type Total Value Price per Carat
Typical Cost - -
Likely Listed Cost - -
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Detailed Descriptions

Rarity Description: Pure red spinel rivaling ruby in color; fine specimens from classic localities (Burma, Tajikistan) are geologically rare.

Availability Description: Fine red spinel trades through established dealers and auctions; increasingly recognized as a ruby alternative with growing demand.

Investment Description: Growing recognition as ruby alternative; fine unheated red spinel from Burma and Tajikistan showing strong appreciation; increasing auction presence and collector demand.

BULLISH
71.88

Score Components

Geo rarity
85
Mkt availability
85
Invest Appr
75
hardness
0
price
85

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Investment Ranking Calculation

The composite score of 71.88 is calculated using a weighted formula:

  • Geological Rarity (25%): 85 points
  • Market Availability (25%): 85 points
  • Investment Appropriateness (25%): 75 points
  • Hardness (12.5%): 0 points
  • Price Range (12.5%): 85 points

Formula: (85 × 0.25) + (85 × 0.25) + (75 × 0.25) + (0 × 0.125) + (85 × 0.125) = 71.88

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